private void RefreshMyDataImpl(string viewName, string liveDataSource, CancellationToken cancellationToken)
{
Invoke(delegate { resultsTableView.DataContext = null; }, cancellationToken);
var clientLock = new object();
lock (clientLock)
{
var client = OGContext.ViewProcessor.CreateClient();
RoutedEventHandler pausedHandler = delegate
{
if (!cancellationToken.IsCancellationRequested)
{
client.Pause();
}
};
RoutedEventHandler unpausedHandler = delegate
{
if (!cancellationToken.IsCancellationRequested)
{
client.Resume();
}
};
//Must do this before we can throw any exceptions
ThreadPool.RegisterWaitForSingleObject(cancellationToken.WaitHandle, delegate
{
lock (clientLock)
{
client.Dispose();
pauseToggle.Checked -= pausedHandler;
pauseToggle.Unchecked -= unpausedHandler;
}
}, null, int.MaxValue, true);
//Now we can start hooking things together
pauseToggle.Checked += pausedHandler;
pauseToggle.Unchecked += unpausedHandler;
ComputationResultsTables resultsTable = null;
int count = 0;
var eventViewResultListener = new EventViewResultListener();
eventViewResultListener.ViewDefinitionCompiled +=
delegate(object sender, ViewDefinitionCompiledArgs args)
{
resultsTable = new ComputationResultsTables(_remoteSecuritySource, args.CompiledViewDefinition);
Invoke(delegate
{
resultsTableView.DataContext = resultsTable;
SetStatus(string.Format("Waiting for first cycle..."));
}, cancellationToken);
};
eventViewResultListener.CycleCompleted += delegate(object sender, CycleCompletedArgs e)
{
resultsTable.Update(e);
SetStatus(GetMessage(e.FullResult ?? (IViewResultModel)e.DeltaResult, ref count));
};
eventViewResultListener.ViewDefinitionCompilationFailed +=
delegate(object sender, ViewDefinitionCompilationFailedArgs args)
{
Invoke(delegate
{
SetStatus(string.Format("Failed to compile {0} @ {1}", args.Exception, args.ValuationTime), true);
resultsTableView.DataContext = null;
}, cancellationToken);
};
eventViewResultListener.CycleExecutionFailed +=
delegate(object sender, CycleExecutionFailedArgs args)
{
Invoke(delegate
{
SetStatus(string.Format("Failed to execute {0} @ {1}", args.Exception, args.ExecutionOptions.ValuationTime), true);
}, cancellationToken);
};
eventViewResultListener.ProcessTerminated +=
delegate {
Invoke(() => SetStatus(string.Format("Process terminated @ {0}", DateTimeOffset.Now), true), cancellationToken);
};
SetStatus(string.Format("Waiting for compilation..."));
client.SetResultMode(ViewResultMode.FullThenDelta);
client.SetResultListener(eventViewResultListener);
client.AttachToViewProcess(viewName, ExecutionOptions.GetRealTime(liveDataSource));
}
}
